baber/WOPTO huggingface dataset:
Patent GB-122511-A (GB)
Title: Improvements in Switch Apparatus for use, more especially, with the Lighter Kinds of Electric Appliances such as Electric Hand Lamps and the like.
IPC: H01H13/12
Filed: 1918-02-09
Abstract: 122,511. Efandem Co., and Williams, A. H. Feb. 9, 1918. Retractive switches. -Switches for light currents, for use with battery lamps for example, consist of a selfcontained unit comprising a metal tube A plugged at one end with insulating material in which the conical-shaped fixed contact C is secured, and a switch member in the form of a metal stamping B, having a split cylindrical part b which makes a spring fit within the inside of the tube, and a spring tongue part b<2> to the end of which a button b<3> passing through the tube is attached. To establish temporary contact, the button b<3> is pressed to fcrce the tongue into engagement with the fixed contact C. The contact is broken when the button is released. By sliding the button sideways, the whole contact member is moved and the end of the spring tongue is forced, with wedge action, into engagement with the fixed contact. The contact member may be slid back to such a position that, when the button is pressed, the end of the tongue is beyond the fixed contact and, consequently, the circuit cannot be established. If the sliding movement is not wanted, the switch member may be a spring strip secured within the tube.
Patent GB-546543-A (GB)
Title: Improvements relating to vacuum electric discharge devices
IPC: H01J19/50
Filed: 1941-02-21
Abstract: 546,543. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Feb. 21, 1941, No. 2393. [Class 39 (i)] A vacuum electric discharge device comprises a header 1 through which the leading-in wires to the electrodes are insu latedly sealed, the header having a hollow protuberance 23 extend ing outwardly and a frameworl 36 supporting the whole of the electrode structure is provided with a resilient part, such as the loop 39 which extends within anc frictionally engages the protuberance, to maintain the framework and electrode structure in position on the header while it is sealed to the envelope. The connections between the electrodes and the sealed in wires complete the rigid connection of the electrode structure to the header. The loop 39 may have shoulders to lock within the usual offset portion 51 at the end of protuberance 23, and a groove may be provided, in addition to the usual pin-locating groove, to hold the loop in the correct angular orientation relatively to the protuberance. The getter strips 48 may be connected at one end to the loop and at the other end to a leading-in wire so that current may be passed through it to release the getter or to perform the final sealing operation, as in Specification 537,762. The example shown is a metal envelope screen-grid valve, with indirectly heated cathode.
Patent GB-119184-A (GB)
Title: Improvements in Forging and Sharpening Machines for Drills, Chisels and similar Tools.
Inventor: HEGINBOTHAM ROBERT
IPC: B21K5/06
Filed: 1918-02-12
Abstract: 119,184. Heginbotham, R., and Rayner, P. Feb. 12, 1918. Forging and sharpening rock-drills; dies.-The apparatus comprises a die a consisting of two parts b, c hinged together and provided with cutting or forming faces b<1>, c<1>. The die has a, split guide f, f<1>, and a shank d for insertion in the headstock of a machine provided with a pneumatic hammer for operating on the jaw c. The drill is finished in a two-part holder h<1> provided with a flared angular mouth j, in which it is operated on by an angular tapered die k. The holder is placed in a die box and the outer end of the drill is supported in a chuck or socket in the end of an adjusting-screw carried by the headstock. The die k is held in a chuck or socket on the pneumatic hammer.
Patent GB-210783-A (GB)
Title: Improvements in or relating to braking devices for automatically closing pipe isolating valves
IPC: F16K47/00
Filed: 1923-05-23
Abstract: 210,783. H³bner & Mayer, and Roschanek, O. May 31, 1922, [Convention date]. Dash-pots.-A dash-pot particularly adapted for use with automatically closing valves comprises a pair of vanes 2 adapted to oscillate in chambers formed by ported partitions 5 in a circular casing 1. The ports in the partitions may be adjustable. Specification 6139/09 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) showed the apertures disposed in the rnoving vanes. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1020848-A (GB)
Title: Improvements in or relating to gravity davits
IPC: B63B23/04
Filed: 1965-01-20
Abstract: 1,020,848. Davits. SCHRODER-NIELSEN. Jan. 20, 1965 [Oct. 29, 1964], No. 2588/65. Addition to 985,170. Heading B7S. In a gravity davit as claimed in the parent Specification the davit arm 1 is a continuation upwards beyond the upper comer 2 of the substantially triangular frame 3, 4, 6 of the two frame members 4, 6 which form the corner 2 at a height above the boat keel, said members 4, 6 being continued upwardly near each other and connected to each other (at 13 and 14). A member 12 connected across the frame 3, 4, 6 forms a keel support for the boat in inboard position.
Patent GB-645716-A (GB)
Title: Centrifugal casting machine
IPC: B22D13/06
Filed: 1948-01-28
Abstract: 645,716. Centrifugal casting - machines. JELENKO & CO., Inc., J. F. Jan. 28, 1948, No. 2600. Convention date, May 3, 1941. [Class 83 (i)] In a machine as described in Specifications 645,714 and 645,715, the thermo-couple is arranged in a rib projecting from the inner face of the 'heating chamber and this, with other ribs, holds the crucible spaced from said inner face. The heating chamber comprises a sheet metal shell 24 lined with magnesia, asbestos, &c. 58, Fig. 5, with a heating element 54 and an inner lining 48 of alundum provided with two ribs 72 for supporting the crucible 74 and an upper rib 60 adapted to engage a groove 92 in the crucible. This has an opening 86, to admit the charge provided with an insulated door 104, Fig. 4, and an outlet 78, Fig. 5, projecting through a flanged plate 36 to catch any spilled molten metal. The thermo-couple 62 is mounted in the rib 60 and leads from this and the element 54 are joined to terminals 64, 66, Fig. 4, in a block 30. The machine is constructed and operated as in the prior Specifications except that it is stated that the mould may be preheated to about 1300‹ F., before clamping against the crucible outlet 78.
Patent GB-488728-A (GB)
Title: Improvements in, and in the manufacture of, pressed metal saucepans and like vessels
IPC: B21D22/26
Filed: 1937-01-29
Abstract: 488,728. Making saucepans &c. MIDLAND METAL SPINNING CO., Ltd., and WEBSTER, F. P. Jan. 29, 1937, No. 2606. [Classes 83 (ii) and 83 (iv)] Cupping.-To provide a thickened rim at the top of the wall of saucepans and the like, a cupped blank m is acted on by a closely fitting punch D and a die E slightly smaller than the external diameter of the blank, the operation being stopped before the blank is completely forced into the die E. Thereby the wall of the blank is reduced along the major part leaving a part m<2> at the top of the original wall thickness the drawing or stamping operation terminating with the blank in the position shown. A plate F with a stem part f serves for ejection of the blank by engagement with an adjustable screw J carried by a cross-head H attached by rods G to the punch head C. The operation on the work may be repeated with successively smaller dies to reduce the wall to any required thickness,
Patent GB-877635-A (GB)
Title: Improvements in or relating to the production of derivatives of heparin
IPC: C08B37/10
Filed: 1960-01-25
Abstract: Heparamine is produced by subjecting heparin in the form of a quaternary ammonium salt with a long chain alkyl or aralkyl amine having from 9-27 carbon atoms to alcoholysis, and thereafter separating heparamine from the reaction mixture in the form of a salt.  In a preferred embodiment sodium heparinate is transformed into a salt of benzyl-dimethyl-2-(2-2-[para-(1, 1, 3, 3, -tetramethylbutyl)- phenoxy]-ethoxy)- ethyl ammonium chloride (Hyamine 1622) and the salt then dissolved in anhydrous tert.-butanol and refluxed with para-toluene sulphonic acid in benzene and tert. butanol.  After cooling, the product is extracted with aqueous sodium acetate and precipitated with methanol to give the sodium salt of heparamine.  The hyamine 1622 may be replaced by hyamine 2389, cequartyl BE, zephirol, or an alkyl-dilauryl-dimethylammonium chloride.  Specifications 41179/58, 863,235 and 867,064 are referred to.
Patent GB-1094312-A (GB)
Title: Frequency measuring circuit
IPC: G01R23/02
Filed: 1966-01-21
Abstract: 1,094,312. Transistor frequency sensitive switches. WESTINGHOUSE ELECTRIC CORPORATION. Jan. 21, 1966 [Jan. 29, 1965], No. 2784/66. Heading H3T. [Also in Divisions G3 and H2] In a circuit for detecting the variation beyond a limit of the frequency (such as that of a 500 cycle supply system) a temperature stabilized ramp voltage generator is reset at a given point in each cycle and the voltage the ramp reaches is compared with the voltage output from a solid-state temperature-stable voltage reference device. An input signal 18 (see V18 of the waveforms of Fig. 2, not shown) switches a tunnel diode 78 at a given point in each cycle to render conductive a transistor 70 (waveform V68). This triggers a flip-flop 56 to produce a reset pulse (waveform V44) to momentarily render conductive a transistor 38 to discharge a capacitor 34. Thereafter, it recharges (waveform V34) through a field effect transistor constant-current circuit 48 having a source resistor chosen to make the current independent of temperature. If the period of input signal is too low the capacitor will charge to a voltage high enough to cause a Schmitt trigger circuit 136 to change its state. The threshold voltage (24, V34) of this circuit is largely determined by a Zener diode 120 which is biased from a resistor 124 with such a current that this voltage, together with that of the gate junction, is temperature stable. The resulting output (waveform V130) produces a pulse (V160) to trigger a bi-stable circuit 162 which however is reset from transistor 60 of the flip-flop at the given point in the next cycle of the input signal so that output pulses (V136) are produced at 174 during the first and each succeeding cycle that is too long and thus the frequency too low. A continuous indication (V190) is obtained by feeding these pulses to a shifter register 178 to which shift pulse are applied from the flip-flop. Detection of too high a frequency is possible if two channels with different threshold frequencies are provided in parallel and the outputs fed is logic circuits to indicate whether either or both frequency is exceeded and accordingly whether the frequency is within or outside the range between the thresholds.
Patent GB-1083893-A (GB)
Title: Improvements relating to the preparation of catalytic compositions
Inventor: HILL THOMAS
IPC: C08F10/00
Filed: 1964-01-22
Abstract: Olefines are polymerized in the presence of a catalyst produced by depositing a chromium-containing compound which is at least partially present as the hexavalent chromium oxide on heating in the presence of molecular oxygen, on to a porous carrier material and subsequently heating the carrier material in the presence of molecular oxygen, wherein the surface area of the catalyst is at least 100 m.2/gm. and the proportion of the surface area of the catalyst in pores of diameter over 100 <\>rA to pores of diameter less than 50 <\>rA is at least 0.5:1. Polymers and copolymers from ethylene propylene, butene-1 and pentene-1 may be made. Polymerization may be effected at 90-105 DEG  C. for "particle or suspension polymerization" and 90-180 DEG  C. for "solution process."  Ex-amples 1-4 describe the polymerization of ethylene and Example 5 an ethylene-propylene copolymer.ALSO:A polymerisation catalyst is made by depositing a chromium-containing compound which is at least partially present as Cr6\sW oxide on heating in the presence of molecular oxygen, onto a porous carrier material and subsequently heating the carrier material in the presence of molecular oxygen, wherein the surface area of the catalyst is at least 100 sq. m./gm. and the proportion of the surface area of the catalyst in pores of diameter over 100  to pores of diameter less than 50  is at least 0.5:1.  Specified carriers are SiO2Al2 O3 and combinations.
Patent GB-269270-A (GB)
Title: A new or improved container for food receptacles
IPC: A47G19/18
Filed: 1926-02-01
Abstract: 269,270. Gray & Wilson, Ltd., and Gray, B. A. Feb. 1, 1926. Stands.-A stand or container 10 adapted to receive a food receptacle 25, such as a jam jar or a tin containing food, is provided at the top with a ring 15 which is detachably secured to pins 21 on the container 10 by bayonet slots. The ring 15 affords a seating for a removable cover 27 as well as serving to locate the food receptacle 25 in position by means of its depending flange 16. The container 10 may be made by glueing together a. number of wooden strips held together at the base by a disc 13.
Patent GB-381811-A (GB)
Title: Apparatus for indicating the depth of liquids in tanks, containers, and the like
IPC: G01F23/24
Filed: 1932-01-30
Abstract: 381,811. Indicating liquid levels. NETTEL, F., 7, Minami Teramachi Mita Shiba-Ku, Tokio. Jan. 30, 1932, No. 2891. [Class 123 (i).] A liquid level indicator, applicable to highpressure steam boilers, comprises a tube a containing an electric heater b, b<1> and surrounded by a coil c, c<1> connected to an indicator such as a Wheatstone bridge and galvanometer. The coil c, c<1> is exposed to the heat from the wire b, b<1> and to the cooling effect of the liquid. The latter effect varies with the depth of immersion, which is thus measured by the indicator. An enclosing tube d is provided. The effect of temperature changes in the liquid may be compensated in known manner. The readings of the indicator may be checked by providing an additional tube f, Fig. 2, open at the bottom, and having a small opening h at the top. A stop-cock g having a much larger opening to the atmosphere is provided, and when closed allows the apparatus to operate in the normal manner. When the cock g is opened, liquid fills the tube f and a reading can be obtained which should correspond to the highest water level in the boiler. The low water level may be checked by introducing a pressure fluid through the cock g to expel water from the tube f.
Patent GB-1411911-A (GB)
Title: Potassium hydroxide electrolyte containing silicate ions
IPC: H01M10/26
Filed: 1973-01-19
Abstract: 1411911 KOH electrolyte with silicate ion SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 3 Jan 1974 [19 Jan 1973 6 June 1973] 2904/73 and 27030/72 Heading H1B Passivation of the zinc electrode of a cell is avoided by employing an aqueous alkaline electrolyte containing 2À00 to 4À75 mol. litre<SP>-1</SP> of potassium hydroxide and 9-36 gram ions litre<SP>-1</SP> of silicate ions. The silicate ions may be provided by the addition of potassium silicate. The zinc may be in powder form as a slurry in the electrolyte which is circulated. The cell may be of the primary, secondary zinc-air, or fuel-cell type.
Patent GB-310104-A (GB)
Title: Improvements in or relating to means for berthing airships
IPC: B64F1/14
Filed: 1928-10-30
Abstract: 310,104. Airship Guarantee Co., Ltd., and Burney, C. D. Oct. 30, 1928. Anchoring. - A landing carriage to which an airship can be moored comprises platforms 3, 4, mounted on circular rails 14, and pivoted together and to a carriage 1 at the centre of the rail track. The airship is first moored to the top of a mooring mast 2 on the carriage 1. and the mooring means are then lowered within the mast. The platforms 3, 4 are then arranged at an angle on either side of the airship as it rides head to wind, and ropes from the airship are passed to winding-means on arms 11 on the platform. The arms, which are preferably pivoted, are in a horizontal position, and as the airship is drawn down the platforms are gradually brought together and the arms 11 raised so that positive connecting means on the arms and airship engage. The landing carriage is then turned round the track until in line with radial tracks 9 leading to a shed. When so positioned hydraulic jacks on the carriage contact with concrete blocks on the ground and are operated to raise the wheels from the rails so that the bogies can be rotated into engagement with the rails 9 on to which thev are lowered. The carriage 3, 4 is then wheeled into the shed with or without the carriage. When in position on the circular track an hydraulically-operated vertical carriage engages a socket in the ground. The arms 11 are longitudinally adjustable on the platforms and the winding means and/or positive connecting means are adjustable on the arms. 'The positive connecting means may comprise male and female cones provided with spring-latches or the like and the airship may be provided in proximity to each such means with a transverse beam 19, Fig. 2, and/or tie-wires 20, 21. The platforms 3, 4 may be locked relative to carriage 1 by links 16, 17, 18. A number of carriages 3, 4 may be used in connection with a single carriage 1, Fig. 5, rail tracks 9 leading to different sheds. One or more power units may be mounted on the platforms 3, 4 or the carriage 1, and may comprise an oil-engine or the like driving an hydraulic pressure generator which feeds motors driving the carriages and the various operating members on the carriages and mast. Suitable devices may be provided for ascertaining the condition of buoyancy of the airship.
Patent GB-776481-A (GB)
Title: Improvements in or relating to automatic looms
IPC: D03D49/70
Filed: 1955-02-01
Abstract: 776,481. Cutting weft ends in looms. HRDINA, R. Jan. 24, 1956 [Feb. 1, 1955], No. 2967/55. Class 142 (2). In an automatic loom the old and new weft ends are cut at beat-up when a resilient member 23 depending from the slay draws them taut across a fixed blade mounted on the temple 13. The resilient member 23 may be a wire with a coil formed intermediate its length, or may be a spring blade or fork. The old weft end is held by a shuttle feeler and cutting device as described in Specification 767,668.
Patent GB-1534970-A (GB)
Title: Process for preparing a match head composition
IPC: C06F3/00
Filed: 1976-01-27
Abstract: 1534970 Matches DAICEL Ltd 27 Jan 1976 03010/76 Heading CID A match head composition is made by mixing and kneading constituents which include water, a binder, and not more than 10% by weight (on a dry basis) of cellulose nitrate powder containing more than 20% by weight of water and having a grain size less than 840 microns. It is not necessary to include sulphur and rosin in the composition. Other ingredients referred to are potassium chlorate, potassium bichromate, manganese dioxide, rosin, glass powder, white pigment, diatomaceous earth, dextrin, boric acid, mica powder, talc, clay, gelatin or glue, and pigment.
Patent GB-1384895-A (GB)
Title: Fabric conditioning
IPC: D06M23/06
Filed: 1972-01-21
Abstract: 1384895 Aerosol fabric conditioner COLGATE-PALMOLIVE CO 21 Jan 1972 [25 Jan 1971] 3027/72 Heading C4X [Also in Division D1] An aerosol fabric conditioning composition comprises a foaming agent, a fabric conditioner, a normally gaseous propellant and water, in emulsion form, which emulsion upon discharge forms a stable foam (i.e. one which does not lose its shape for at least 5 minutes after discharge and does not weigh less than 10% below the total weight of the discharged material) and which is spreadable over the surfaces of fabric during tumbling of the fabric to condition the fabric. The conditioner is a fabric-softening and/or antistatic agent. The foaming agent may be an anionic or non-ionic surface active agent and may account for 0À5 to 15% of the composition. Suitable foaming agents, of which many are listed, include lower alkanolamine soaps of higher fatty acids, water-soluble higher fatty alcohol sulphates, alkyl benzene sulphonates, polyoxy-lower alkylene higher alkyl ethers and higher alkyl di-lower alkyl amine oxides. The conditioner, which may be the same or a different substance from the foaming agent, may be an amphoteric or cationic surface active agent present in an amount of 0À5 to 15% of the composition if distinct from and 1 to 30% of the composition if the same as, the foaming agent. Specified conditioners include complex fatty amido compounds and quaternary ammonium halides. The propellant may be a fluorocarbon, chlorofluorocarbon or a mixture of such substances, nitrogen, nitrous oxide or carbon dioxide and may be present in an amount of 10 to 79% of the composition. The balance is water, preferably deionized. Thickeners, e.g. synthetic resins, organic gums or cellulose derivatives, may be added to slow the rate of discharge of the composition. Thinning agents such a polyhydric alcohols may be added to prevent gelation of the composition foam stabilizers, e.g. cetyl alcohol may be included, particularly when the foaming agent is non-ionic. Fluorescent brighteners of the amino stilbene type may be added. The composition is preferably agitated before use.
Patent GB-962376-A (GB)
Title: Reducing sand intrusion in wells
IPC: E21B33/138
Filed: 1963-01-24
Abstract: 962,376. Wells &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Jan. 24, 1963 [Jan. 26, 1962], No. 3103/63. Heading E1F. Sand intrusion into a borehole passing through strata of different permeabilities is reduced by sealing the wall of the borehole over the depth of the strata, forming a channel through the sealed wall into a permeable section of the strata, and forcing a consolidating fluid through the channel into the permeable section. A casing 29 is cemented into the borehole 16 which passes through oil bearing sand strata 12, 13 and a shaly sand strata 14. The channels 31, 32 are formed through the casing into the strata 12, 13, and a fluid plastic is injected to form consolidated sections 33, 34. The channels in the strata are hydraulically fractured and contain propping material 35.
Patent GB-750597-A (GB)
Title: Rotors for gas turbine installations and exhaust gas turboblower installations
IPC: F01D5/04
Filed: 1953-06-26
Abstract: 750,597. Gas turbine plant; centrifugal blowers. KLOCKNER - HUMBOLDT - DEUTZ AKT.-GES. June 26, 1953 [June 27, 1952], No. 3113/55. Divided out of 750,508. Drawings to Specification. Classes 110(1) and 110(3) In a rotor assembly for a gas turbine plant or an exhaust-gas turbo-blower, a hollow cup-like member carries the turbine rotor on the exterior of its base and carries the blower rotor on its peripheral surface, and a tubular support for the rotor shaft bearings projects into the cuplike member, the rotor shaft being connected to the interior of the said base; the cross-section of the base in the direction of heat conduction to the blower is larger than the cross-section of the points of contact of its interior with the rotor shaft. This arrangement limits the flow of heat from the turbine rotor to the rotor shaft and bearings. A screen situated between the turbine and blower rotors limits radiation of heat from the turbine rotor and is cooled by air leaking from the blower rotor and passing along one or both sides of the screen. The subject-matter is substantially the same as that of Specification 750,508, but the claims differ.